X0306 4 2014-05-30 0 0000768251 ALTERA CORP ALTR 0001554623 NELSON MARK JON 101 INNOVATION DRIVE SAN JOSE CA 95134 0 1 0 0 Sr VP, Worldwide Sales Common Stock 2014-05-30 4 S 0 2177.0 33.33 D 4838 D The sale was made pursuant to a Rule 10b5-1 Sales Plan adopted by the reporting person on April 30, 2014. The 2,177 shares were sold in 1 lot with a sale price of $33.33. The reporting person undertakes to provide to any security holder of Altera Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares and prices at which the transactions were affected. Mark Jon Nelson 2014-06-02